Question: Which is {given name} of {G. M. Trevelyan} whose {series ordinal} is {1} ?
Paraphrase: Get me the name of G. M. Trevelyan with series ordinal 1
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1373357 p:P735 ?s . ?s ps:P735 ?obj . ?s pq:P1545 ?x filter(contains(?x , '1')) }